San Antonio Mayor Gina Ortiz Jones joined the 6 O’Clock News on Tuesday to discuss the city’s fiscal challenges as it approaches a $158 million budget gap.If the city eliminated every library, all general fund spending on public health and funds to Animal Care Services, San Antonio would still be $21 million short of the budget deficit, Jones said.“So when we’re thinking about the scale of this challenge, that is how deep some of these cuts may …